Struct TaskSpecBuilder 

pub struct TaskSpecBuilder { /* private fields */ }

Builder for TaskSpec that validates structural invariants on build.

Required fields (slot, kind, timeout) are set in the constructor. Optional fields have sensible defaults:

• backoff: BackoffPolicy::default (full jitter, 1 s → 30 s, factor 2)
• admission: AdmissionPolicy::DropIfRunning
• restart: RestartPolicy::Never
• runner_selector: None
• labels: empty

Also

• TaskSpec::builder entry point.
• TaskSpec::validate submit-boundary validation (rejects Embedded).

Implementations

impl TaskSpecBuilder

pub fn restart(self, restart: RestartPolicy) -> Self

Set restart policy.

pub fn backoff(self, backoff: BackoffPolicy) -> Self

Set backoff configuration.

pub fn admission(self, admission: AdmissionPolicy) -> Self

Set admission policy.

pub fn runner_selector(self, sel: RunnerSelector) -> Self

Set runner selector.

pub fn labels(self, labels: Labels) -> Self

Set metadata labels.

pub fn build(self) -> ModelResult<TaskSpec>

Build the TaskSpec, validating structural invariants.

This checks everything except the TaskKind::Embedded business rule (which is enforced at the submit boundary by TaskSpec::validate).

Errors

Returns ModelError::Invalid if:

• slot is empty
• timeout is zero
• kind fails kind-specific validation
• backoff parameters are invalid
• runner_selector requirements are invalid